supply of bus coupler control of hog a/ b modebus coupler control of hog a/ b mode,bus coupler control of hog a/ b mode (s2k10, s2k11) auxiliary contactor, safety lop hog a & b control auxiliary contactor, hog a & b over load auxiliary contactor & hog a & b earth leakage auxiliary contac tor with 24v dc coil, aux. 3 no+ 1 nc. material shall conforming rdso specification no. rdso/ pe/ spec/ tl/ 0195- 2019 (rev-0). material is schneider part no. ca3kn31bd or siemens part no. 3rh21311bb40 or abb part no. tkc6- 31z or l&t part no. mo0 dc or c&s electric part no. tca3dn31bd/ tca3dn31fd. material shall p rocure from above said oem or his authorized dealers or firm who submit authorization of said oem only => limited